If you're up for a drive to Akron, there's always Ellet Fabric & Freight on Canton Road.

They have an Ebay store, so you can see what kind of fabric they have. I've gotten some pretty sweet deals there.

There's also - Fabric and Freight Mart in Barberton - 660 W. Tuscarawas. They have 2 bulidings - one has upholstery fabric (and junk) and the other has clothing/quilting-weight fabric and accessories, batting, etc.